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W1 (TM) is an acid activated bentonite clay adsorbent specifically for the removal of chlorophyll, heavy metals, and fats. W1 is very effective at purifying and refining while preserving the terpenes present in the oil. Unlike other clays, the ability to remove soaps and free fatty acids which are produced during the bleaching process reduces the amount of clay needed to purify. 

W1 Technical Data Sheet